Ventilator for railway-cars.



No. 647,507. Phtented Ap'r.-l7, I900. a. H. mooma.

VENTILATOR FUR RAILWAY CARS.

(Application filed July 15, 1899.)

(No Model.)

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NTED STATES PATENT OFFICE.

GEORGE I-I. MOORE, OF NORWVICH, CONNECTICUT, ASSIGNOR TO OSCAR S.GREENLEAF, OF SPRINGFIELD, MASSACHUSETTS.

VENTILATOR FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent NO. 647,507, dated April17, 1900.

Application filed July 15, 1899. Serial No. 724,001. (No model.)

To all whom, it may concern: H

Be it known that I, GEORGE H. MOORE, a citizen of the United States,residing at Norwich, in the State of Connecticut, have invented a newand useful Improvement in Ventilators for Railway-Cars, of which thefollowing is a specification.

The object of my invention is to provide an improved ventilator adaptedfor conducting air either into or out ofthe car, as desired, and alsoadapted for the prevention of the entrance of dust or cinders into thecar with the entering air, and also for the prevention of the passage ofwater from the ventilator to the interior of the car.

In the accompanying drawings, Figure 1 represents a side elevation of arailway-car provided with myimproved ventilator. Fig. 2 represents a topView of the ventilator. Fig. 3 represents a section taken in the line 33 of Fig. 2. Fig. 4 represents a section taken in the line 4: 4 of Fig.2. Fig. 5 represents a section similar to that shown in Fig. 3, showinga modification. Fig. 6 represents a section showing another form ofattachment.

In the drawings, A represents the railwaycar, and B B the ventilators,placed reversely upon the roof 0 and connected with the interior of thecar, and in order to prevent the entrance of dust and cinders with theair passing through the ventilator into the car I provide a horizontaltube E, of any desired form of cross-section, the walls of which aredrawn inward at one end to form a contracted aperture cl, whereby theair may be compressed within the chamber F and caused to pass laterallythrough the meshes of the screen G into the passage H, which extendsfrom the chamber F to the pipe or passage D, leading to the interior ofthe car. The outwardly-ta pered end 6 of the tube Eserves to allow theair to flow evenly through the chamber F without the formation of aneddy-current, which would tend to cause the retention of the cindersupon the screen G, the air being thus allowed to rush along the innerside f of the screen to sweep the dust and cinders therefrom, which isan important feature of my invention.

The air-passage H extends from the outer side of the tube E beyond thescreen G and over the top of the said tube to the pipe D, whereby therain-water,whichin certain cases may be blown through the screen, willbe prevented from passing over into the pipe D, and thence to theinterior of the car, a small opening at being preferably provided forthe escape of the water from the air-passage H. The screen G is maderemovable for the purpose of cleaning or repairing by the employment ofthe screws h h, which serve to attach the screen to the interior of thetube E.

As shown in the drawings, Fig. 1, the ventilators at the opposite endsof the car are reversed, so that as the car moves forward along thetrack the fresh air will be forced by the forward ventilators B into thecar and the vitiated air drawn out by the rear ventilators B',which inthis case operate as vacuumventilators.

A modification of my invention is shown in Fig. 5, in which the screen Ginstead of being placed upon the side of the chamber F remote from thepipe D is placed upon the side nearest thereto, and instead of leadingthe air from the screen over the top of the tube to preventthe waterwhich maybe blown through the meshes of the screen from passing into thepipe D, and thence into the car, the transverse upper and lowerpartitions 7c and Z may be so arranged that the water will be retainedin the space a between the partition Z and the screen G and be caused toflow out through the small perforation m in the floor j, and thus beprevented from passing into the car, the top of the partition Z, whichforms the highest portion of the bottom of the passage H, being at ahigher level than that of the outlet-opening m.

Another form of construction is shown in Fig. 6, which shows aventilator of the construction shown in Figs. 3 and 4, adapted forattachment to the side of the car by means of the attaching-fiange p.

I claim as my invention-- 1. In a car-ventilator, the combination of thetube having its axis arranged in the line of the movement of. the car,and having an outwardly-tapered end forming a contracted aperture, and'alateral air-passage leading from the cavity of the tube to the interiorof the car, with the screen arranged between the cavity of the tube andthe lateral air-passage, in the direction of the current of air throughthe tube, whereby the dust and cinders will be swept from the surface ofthe screen by the current of air, substantially as described.

2. In a car-ventilator, the combination of the tube having its axisarranged in the line of the movement of the car, and having anoutwardly-tapered end forming a contracted aperture and a lateralopening at the side of the tube, With a screen arranged at said opening,and an air passage leading from the screen to the interior of the car,and passing over the tube,whereby the Water which passes through thescreen will be prevented from GEORGE H. MOORE.

Witnesses:

CHARLES E. WHITNEY, CHAS. F. WHITNEY.

